首先輸入root,密碼進入
xinknat# ifconfig
顯示：
eth0 Link encap:Ethernet HWaddr 00:30:18:A1:A9:4A
inet addr:98.126.33.66 Bcast:98.126.33.71 Mask:255.255.255.248
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:92139669 errors:0 dropped:0 overruns:0 frame:0
TX packets:99505579 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3484683143 (3.2 GiB) TX bytes:476753694 (454.6 MiB)
interrupt:30 Base address:0xe000
eth0:0 Link encap:Ethernet HWaddr 00:30:18:A1:A9:4A
inet addr:98.126.33.67 Bcast:98.126.33.71 Mask:255.255.255.248
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Interrupt:30 Base address:0xe000
eth0:1 Link encap:Ethernet HWaddr 00:30:18:A1:A9:4A
inet addr:98.126.33.68 Bcast:98.126.33.71 Mask:255.255.255.248
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Interrupt:30 Base address:0xe000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:38 errors:0 dropped:0 overruns:0 frame:0
TX packets:38 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:2068 (2.0 KiB) TX bytes:2068 (2.0 KiB)
輸入:” ifconfig eth0:2 98.126.33.69 netmask 255.255.255.248 up “
再輸入:“vi /etc/sysconfig/network-scripts/ifcfg-eth0:2 “
DEVICE=eth0:2
ONBOOT=yes
BOOTPROTO=static
ipadDR=98.126.33.69
保存，按Esc退出，輸入” : wq “在輸入”shift+！ “然后回車成功。
重啟網絡讓IP生效： service network restart
cat /etc/sysconfig/network-scripts/eth0:2 查看更改生效了不
附刪除ip方法
代碼:
ifconfig eth0:2 98.126.33.69 netmask 255.255.255.248 down
rm /etc/sysconfig/network-scripts/ifcfg-eth0:2
————————————
1.添加虛擬ip
ifconfig eht0:1 192.168.100.22 netmask 255.255.255.0
2. 刪除剛才添加的虛擬IP
ip addr del 192.168.100.22/24 dev eth0
————————————————–
單網卡批量添加不同IP段
70.39.112.194 添加IP:70.39.112.195-222/70.39.83.226-254
代碼:
vi /etc/sysconfig/network-scripts/ifcfg-eth0-range0
DEVICE=eth0
ONBOOT=yes
BOOTPROTO=static
ipadDR_START=70.39.112.195
ipadDR_END=70.39.112.222
CLONENUM_START=0
GATEWAY=70.39.112.193
NETMASK=255.255.255.224
NO_ALIASROUTING=yes
service network restart #重啟網卡
————————————————————-
ifconfig 后 看到 IP:70.39.112.195-222 對應網卡號:eth0:0-eth0:27,
所以再批量添加IP，網卡從eth0:28以后開始就行,
網卡eth0不變，創建新文件:ifcfg-eth0-range1
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
vi /etc/sysconfig/network-scripts/ifcfg-eth0-range1
DEVICE=eth0
ONBOOT=yes
BOOTPROTO=static
ipadDR_START=70.39.83.226
ipadDR_END=70.39.83.254
CLONENUM_START=28
GATEWAY=70.39.83.225
NETMASK=255.255.255.224
NO_ALIASROUTING=yes
重啟網絡讓IP生效： service network restart
